Engine structure



Sept. 26, 1961 H. R. PAYNE ENGINE STRUCTURE Filed Aug. 18. 1958 3 Sheets-Sheet 1 I'- II n 1/1111, ,e XM/J/Q 3 Sheets-Sheet 2 Filed Aug. 18, 1958 INVETIJTOR. //47v// R Wayne.

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Sept. 26, 1961 H. R. PAYNE ENGINE STRUCTURE 3 Sheets-Sheet 3 Filed Aug. 18, 1958 United States Patent ENGINE STRUCTURE Harold R. Payne, Royal Oak, Mich., assignor to Chrysler Corporation, Highland Park, Mich., a corporation of Delaware Filed Aug. 18, 1958, Ser. No. 755,478 3 Claims. (Cl. 123-55) This invention relates to V-type internal combustion engines and in particular to the combined structure of intake manifold gaskets and tappet chamber cover, the mounting surfaces on said engines for this combined structure, and to the assembled engine utilizing said combined structure and mounting surfaces.

This application is for an improvement on the combined structure of intake manifold gaskets and tappet chamber cover of copending applications of Robert S. Rarey and Frederick R. Shrimpton Serial No. 749,703, filed July 21, 1958, now Patent No. 2,941,521, and Robert S. Rarey Serial No. 755,477, filed August 18, 1958, owned by applicants assignee.

Heretofore, the intake manifold gaskets and tappet chamber covers and the gaskets therefor, for use in V- engines were individually produced and individually assembled on the engine. The separate mounts required for the manifold gaskets and the cover and gasket did not take proper advantage ofthe intake manifold mounting surfaces of the heads which, it has been discovered, provides a convenient and adequate surface for, the attachment of the tappet chamber cover to the engine and eliminates the need for side mounting flanges on the engine for said cover. Furthermore, it has been discovered that by making the upper portions of the end flanges of the engine block and the intake manifold mounting portions of the heads into a substantially continuous mounting wall, the above mentioned combined structure could be readily made to fit on said wall and be clamped thereto to simultaneously provide intake manifold gaskets and a tappet chamber cover for said engine.

An object of this invention is to provide an integral structure capable of being produced by a single stamping operation and which can adequately serve as intake manifold gaskets and a tappet chamber cover for a V-engine.

Another object is to eliminate the need for separate intake manifold gaskets and tappet chamber covers and the gaskets for said covers.

Another object is to combine engine block and engine head structure to provide a substantially continuous mounting wall for the combined structure of intake manifold gaskets and a tappet chamber cover.

Further objects and advantages will become apparent with reference to the following drawings and description, in which:

FIGURE 1 represents a top elevational view of the combined gaskets and cover;

FIGURE 2 represents an end view of the combined gaskets and cover;

FIGURE 3 is a view taken along line 33 of FIG- URE 1 in the direction of the arrows;

FIGURE 4 is a view taken along line 4-4 of FIGURE 1 in the direction of the arrows;

FIGURE 5 represents a top elevational view of a V,-eugine with the intake manifold and a portion of the combined gaskets and tappet chamber cover removed;

FIGURE 6 represents a transverse cross sectional view of a V-engine showing the intake manifold and combined gaskets and cover in place;

FIGURE 7 represents a longitudinal partly sectional view of the V-engine of FIGURE 6 without the intake manifold taken along line 7--7 of FIGURE 6 in the direction of the arrows;

FIGURE 8 is an end view of the engine showing the continuous mounting wall thereon; and

FIGURE 9 represents a top elevational view of a variation in sealing bead arrangement of the manifold gasket.

Referring to the drawings and in particular to FIG- URES l to 4 a unitary structure 10 represents intake manifold gaskets 12 integral with the opposite sides of a trough shaped tappet chamber cover 14 and forming flanges thereon. Pairs of intake apertures 16 are located in each gasket 12 on either side of an exhaust crossover aperture 18 therein. These apertures are spaced so as to coincide with the intake conduits 20 and hot spot crossover conduits 22 of an intake manifold 24 (see FIGURE 6) and cooperating conduits 21 and 23 in heads 26 of a V-engine 28. An air coolant chamber 27 partially surrounds conduit in each of said heads 26. Encircling each of the conduit apertures 16 and 18, and the manifold clamping bolt apertures 32 in the intake manifold gaskets is a bead 30 raised from the upper surface of structure 10 and extending substantially around the entire outer edge of said structure. A continuous sealing head is not the most effective type of bead to use because the interior portion or female portion 33 of the bead (FIGURE 4) may act as a channel through which oil may be transferred from one leakage point along the gasket to another. For thisreason the bead 30 is broken at intervals 31 as shown in FIGURES 1 and 5. End

flanges 34 on structure 10 provided with clamping boltapertures 36 are adapted to rest on end supports 38 of V-engine 28 (FIGURES 6 and 7) and be clamped thereto by bolts 42 and bars 40 which bars extend across the end of the structure 10 as shown in FIGURE 5 and are provided with apertures 41 adapted to receive said bolts. Additional beads 35 are located on each of the end flanges 34 and prevent the clamping bars 40 from tipping which tipping may prevent the complete crushing of bead 30 and result in a poor seal.

In FIGURE 9 is shown a second bead .29 utilizable on each manifold gasket and spaced inwardly from the first bead 30 to provide additional sealing between the heads and the intake manifold.

As shown in the broken away portion of FIGURE 5 the end supports 38 of engine 28 and the intake manifold mounting walls 39 of heads 26 form a continuous mounting surface upon which the combined structure 10 is mounted. Supports 38 and walls 39 also define the perimeter of the opening through the block leading into the tappet chamber 37. Bead 30 which projects up from the structure 10 is designed to create an oil tight seal by becoming crushed under the force of the intake manifold 24 and bars 40 as said manifold and bars are clamped by bolts to said mounting walls 39 and supports 38 respectively.

stiffening ribs 44 and 46 are formed in trough 14 of the cover by pressing grooves in said trough. These ribs prevent the cover from vibrating too violently which vibration might cause a defect in the seal between the manifold and the heads. It is noted that trough 14 is designed so as to accommodate the lowest portion of the intake manifold, and the above mentioned stiffening ribs also prevent said trough from vibrating against said manifold portion.

I claim:

1. A unitary structure providing a combined intake manifold gasket and tappet chamber cover for a V-engine having a block, opposed cylinder banks and heads, and an intake manifold positioned on said heads intermediate said banks, said structure comprising a troughlike body arranged below said intake manifold when installed on said engine, said body having opposite end flanges extending outwardly from said body in a plane substantially parallel to the bottom of said body for seating on said block and having opposite side flanges diverging from each other at a substantially right angle for seating on said heads between said heads and said manifold, said flanges being coextensive to surround said troughlike body, a plurality of stiffening ribs running longitudinally and transversely of said body, a plurality of apertures in said side flanges for coinciding with apertures in said heads, and a bead-like projection on the upper face of said flanges extending around the periphery of said coextensive flanges, and a break in said projection between each of said apertures in said side flanges to prevent the transfer of oil along said projection.

2. In a V-engine having a block, opposed cylinder banks and heads, and an intake manifold having conduits positioned on said heads intermediate said banks, each of said heads having conduits therein corresponding to said manifold conduits and having a combination intake manifold and tappet chamber cover side mounting wall thereon, said block having a tappet chamber cover end mounting Wall at each end thereof intermediate said heads, said mounting walls on'said block and said heads forming a substantially continuous mounting, and a combined structure of intake manifold gaskets and a tappet chamber cover mounted on said-mounting wall intermediate said intake manifold and said block and heads, said manifold gaskets of said structure having apertures therein corresponding to the conduits of said intake manifold, and a sealing bead raised up from the upper surface of said combined structure and extending around said structure inwardly from the edge thereof and around the edges of said apertures and adapted to create a seal between said heads and said manifold and between said tappet chamber and the atmosphere, and a break in said projection between each of said apertures in said side flanges to prevent the transfer of oil along said projection.

3. In a V-engine, a block, an opening in the top of said block communicating with a tappet chamber, opposed cylinder banks and heads extending angularly from said block, an intake manifold intermediate said banks and positioned adjacent said heads, said manifold having intake conduits therein, each of said heads having conduits therein corresponding in position to said intake manifold conduits, each of said heads having a unitary intake manifold gasket and tappet chamber side mounting wall thereon, said block having a tappet chamber cover end mounting-wall at each end thereof intermediate said heads, said mounting walls on said block and said heads forming a continuous mounting Wall defining said open ing in said block, a combined structure of intake manifold gaskets and a tappet chamber cover mounted on said continuous mounting wall intermediate said intake manifold and said block and heads, said manifold gaskets of said combined structure having apertures therein corresponding in position to the conduits of said intake manifold, a sealing bead raised up from the upper surface of said combined structure and extending peripherally around said combined structure and the apertures therein inwardly from the edges of said structure and said apertures, a break in said bead on either side of each of said apertures, the length of said break being approximately the width of said bead.

References Cited in the file of this patent UNITED STATES PATENTS OTHER REFERENCES Ford Passenger Car Shop Manual, 1949-5041, page 32. Copyright 1950. 

